South Island Open Championships

The South Island Open Championships was a regional men's and women's grass court then later hard court tennis tournament founded in 1934 as the South Island Championships. The tournament was first played at the Nelson Lawn Tennis Club (f.1925), Nelson, Nelson Province, North Island, New Zealand. The tournament was played at other locations until 1978 when it was discontinued as part of the ILTF Independent Tour.

History
This tournament has it origins in the Nelson Provincial Lawn Tennis Association Championships founded in 1899 that ran till 1910. In 1934 the Southern Lawn Tennis Association of New Zealand was established (today its known as Tennis Southern) it established the South Island Championships.

The tournament was first played at the Nelson Lawn Tennis Club (f.1925), Nelson, Nelson Province, New Zealand. The event was part of ILTF Australasia Circuit (1934–72) a sub circuit of the ILTF World Circuit, then later the ILTF Oceania Circuit a regional circuit of the ILTF Independent Tour from 1975 until 1978 when it was downgraded from the worldwide independent tour it became a local regional event of Tennis New Zealand and is still held today.

The tournament was held in Nelson, but also other locations including, Christchurch, Timaru and Wānaka.

The North Island equivalent to this tournament was the North Island Open Championships also founded in 1932 by the Northern Lawn Tennis Association of New Zealand.

Men's singles
(incomplete roll)

Women's singles
(incomplete roll)